Gas-lamp.



PATENTED FEB. '7, 1905. A. W. NICHOLLS.

GAS LAMP APPLICATION FILED ooT.e,19o4.

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@menton Meri WA/aal No. 781,784.. PATENTBD FEB. '7, 1905. A. W. NIGHOLLS.

GAS LAMP.

APPLIUATION FILED 00T.a,1oo4.

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wuewtoz .M f @wm Mm PATENTED FEB. 7, 1905.

A. W. NICHOLLS.

GAS LAMP.

APPLIUATION FILED 0012.6, 1904.

DIO. 781,784. Patented February 7, 1905.

IINTTED STATES PATENT Prion,

ALBERT IV. NICI'IOLLS, OF CHICAGO, ILLINOIS, ASSIHNOR OF ONE-HALF TO F. I), NOERA, OF IVATERBURY, CONNECTICUT.

GAS-LAMP.

SPECIFICATION forming' part of Letters Patent No. 781,784, dated February 7, 1905.

Application tiled October 6, 1904. Serial No. 227,452.

T (0U U14/WW 'if 1111/7/ {W1/06TH: l the flexible tubing' An interio1'l v-thread- 50 Be itltnown thatI, ALBERT NIouoLLs, a ed fitting' 6, provided with a tapering' nipple citizen of the United States, residing' at Chil T, forms a connection for the tlcxible tubing' cago, in the count)v ot' Cool; and State of Illi- 5, the nipple being' passed through an apernois, have invented certain new and useful Imture in the base and extended into the end ot' provements in (ias-Lamps; and I do declare the tubing', a washer 8 being` litted to thc en- 55 the following' to be a t'ull, clear, and exact delarg'ed portion ot' the nipple and bearing' scription ot' the invention, such as willenable against the inner wall ot' the base. The upothers skilled in the art to which it appertains per endof the tube 5 is col'mected toa similar 1c to make and use the same. nipple 9, having' an enlarged tlu'eaded portion This invention relates to gas-lamps; and It), titted within acounection ll, the burner- O one ot' the objects of the same is to provide a tube I2 being' screwed into said connection stand-lamp for use with a mantle-burner and and extending up and out ot' the stand and to provide means in such alamp for reducing provided at its terminal end with a burner i5 or absorbing' the vihratory movements which seat or cap 13.

areliable toinjure or break the t'rag'ile mantle. A spiral spring' 1I is seated at its lower end 65 Another object is to provide improved litupon the connection ll, said spring'extending' ting's t'or this character ot' lamp; and still anup toward the top ot' the stand, where its upother object is to provide means for vertically per end is connected to a litting' l5, having' a 2o guiding' the burner-tube relatively to the stand reduced portion lo, which serves as a g'uide or base` for the burner-tube in its vertical vibrations. 70

These and other objects are attained b v A metal tube IT is connected at its lower means ot' the construction illustrated in the end to a. nut 1S, bearing' against a washer 19,

accompanying' drawings, in whichseated in a recess near the upper end ot' the Figure l is a central vertical section ot' a base I, said tube 1T surrounding' the burnerg'as-lamp made in accordance with my inventube l? and the spring' 1I and extending' up 75 tion. Fig'. 2 is an elevation and partial secwithin the stand` where its upper end is contion ot' a slig'htLv-moditied form ot' my invennccted to a cap '20. resting' upon the litting' l5. tion, and showing' the lamp connected b v A cap 2l, provided with a central opening' 3o means ot a flexible tube to a wall-bracl et or to receive the reduced portion lo otl the litburner. Fig'. 3 is a vertical sectional viewotl ting' l5, has` connected to its lower end the SO a moditied t'orm ot' lamp provided with means outer tube 22, the lower end ot' which is lirml)v t'or vertically adjusting' the burner-tube and seated in a recess 22E, I'ormed in the upper end also provided with means for absorbing' or ot' the base l.

counteracting' the vibrations or jars of the i The burner-tubel2nearitsupperend passes lamp. Fig'. I isa side elevation ot' a lamp ot' through a smoothlvbored portion ot' the lit- 35 modilied torm. Fig'. 5 is aside view and parting' 15 and can have a slig'ht vertical movetial section ot my improved Stork-neck and ment therein iu ease the lamp should he sublitting's therefor. jected to a jar sutlicient to extend or contract 40 Referring' to the drawing's for a more parthe spring' I-I. the latter serving' to cushion or Licnlar description ot' my invention, the nurelieve the shocks to which the mantle may be 90 meral l denotes the base portion of the lamp, subjected. and, as shown in Fig'. l, this base is hollow Owing' to the heav)Y base l and the spring' and provided with an oii'set or enlargement?. 14 the slig'ht vibrations to which mantle-lamps atits lower portion to provide means for holdare subjected are to a great extent countering' a casting' or metal weight 3, designed to acted and absorbed. 05 atord a tirm stand for the lamp and to pre- In Fig'. 2 the lamp is provided with a solid ventit't'rom being' easilv tipped over orjarred. cast-metal base '24, provided with an opening' The weight 3 is recessed at to accommodate for the liexible tubing' 25, the inner end ot which is connected in a manner similar to that shown in Fig. l to a nipple and fitting 26. A heavy spiral spring 27 surrounds the vertical portion of the stand, its lower end being secured to the base and its upper end to a cap 28. The burner-tube in this structure is also capable of adjustment in a manner similar to that of Fig. l, and the antivibratory features are also retained in this construction. The flexible tubing 25 comprises an inner rubber tube 29, a surrounding spring 30, and braided jackets 81 32, united to the inner rubber tube 29 and the spring 30 by an adhesive gas-proof compound 33, containing' glue and glycerin. The smooth rubber inner tube 29 affords a better conductor for the gas than tubes having' inner spring or corrugated linings, and I am enabled to get a more powerful light owing to increased gas-pressure afforded by the smooth inner surface of the tube.

As shown in Fig. 8, the outer spring 34 is enlarged at its central portion, and the burnertube is held in vertical adjustment by means of the thumb-screw 35, which passes through a bearing or boss 86, connected to the cap 35 by a threaded projection 37.

In the construction shown in Fig. 4 the inner tube 17 is omitted and the outer spring 38 is not enlarged centrally, as is the case in Fig. 3.

As shown in Figs. 2 and 5, a sterk-neck 38 is fitted to the upper end of the tubing' 25 and a ground-joint fitting is provided for connection. to the gas-supply nipple. In Fig'. 2 the ground-joint connection comprises a flaring tube 39, fitted upon the end of the storli-neck 88 and having' a fiange 40 at its lower end. Fitted within the tube 39 is a tapering connection 41, the outer surface of which is ground to fit the ground inner surface of the tube 39, and said two parts being firmly united by means of a threaded ring 42, having' a flange 43 to engage the fiange 40 and a threaded engagement with the enlarged lower end of the connection 41, as will be understood upon reference to the drawings.

The construction shownin Fig'. 5 is slightly modified. The Stork-neck 38 is fitted to a for counteracting vibrations or jars, means for adjusting the burner-tube vertically, and having other features of construction, which render the lamp strong, durable, efficient, and comparatively inexpensive to manufacture.

Various changes in the shape, proportions, and minor details of construction may be resorted to without departing from the principleof or sacrificing any of the advantages of this invention.

Having thus described my invention, what I claim as new, and desire to secure b v Letters Patent, is

l. A gas stand-lamp comprising' a weighted base, a spiral spring connected at one end to the base and rising therefrom, a burner-tube within the spring, a flexible tube extending into the base and connected to the burnertube, a fitting connected to the upper end of the spiral spring, the burner-tube passing through said fitting, and guided thereby in its vertical vibrations, substantially as described.

2. A gas stand-lamp consisting of a hollow base having a weight therein, a tube connected to said base and extended upward therefrom, a spiral spring within said tube, a burner-tube within said spiral spring, and connected thereto at its lower end, afiexible tube extending' into the base and connected to the lower end of the burner-tube, and a fitting through which the burner-tubeis guided in its vertical vibrations, substantially as described.

In testimony whereof I have hereunto set my hand in presence of two subscribing' witnesses.

ALBERT IV. NICHOLLS. iVitnesses:

BETH KIRK, CHARLES l). KnLLoGG. 

